Planetary hours
in Bilbao.
The day, from sunrise to sunset, is cut into twelve equal hours; so is the night, from sunset to the next sunrise. Each hour carries a planet, in the Chaldean order. A planetary hour therefore lasts 60 minutes only at the equinoxes: it all depends on the date and the city. Here are the exact hours for your city; what you do with them is up to you.
Planetary day of Thursday, 25 December 2025: day of Jupiter
- Sunrise
- 08:42
- Sunset
- 17:41
- Next sunrise
- 08:42
A day hour lasts 45 min; a night hour, 1h 15m. Local time (Europe/Madrid).
Day
- 1♃︎ Jupiter08:42 – 09:27
- 2♂︎ Mars09:27 – 10:12
- 3☉︎ Sun10:12 – 10:57
- 4♀︎ Venus10:57 – 11:42
- 5☿︎ Mercury11:42 – 12:27
- 6☽︎ Moon12:27 – 13:11
- 7♄︎ Saturn13:11 – 13:56
- 8♃︎ Jupiter13:56 – 14:41
- 9♂︎ Mars14:41 – 15:26
- 10☉︎ Sun15:26 – 16:11
- 11♀︎ Venus16:11 – 16:56
- 12☿︎ Mercury16:56 – 17:41
Night
- 1☽︎ Moon17:41 – 18:56
- 2♄︎ Saturn18:56 – 20:11
- 3♃︎ Jupiter20:11 – 21:26
- 4♂︎ Mars21:26 – 22:41
- 5☉︎ Sun22:41 – 23:56
- 6♀︎ Venus23:56 – 01:12
- 7☿︎ Mercury01:12 – 02:27
- 8☽︎ Moon02:27 – 03:42
- 9♄︎ Saturn03:42 – 04:57
- 10♃︎ Jupiter04:57 – 06:12
- 11♂︎ Mars06:12 – 07:27
- 12☉︎ Sun07:27 – 08:42
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Questions
How are the planetary hours calculated in Bilbao?
On Thursday, 25 December 2025, the Sun rises at 08:42 and sets at 17:41: the day lasts 8h 59m, that is twelve day hours of 45 min. The night, until the next sunrise at 08:42, lasts 15h 01m: twelve night hours of 1h 15m.
Which planet rules the first hour that day?
Jupiter, from 08:42 to 09:27: the first hour of a day always goes to the planet of the weekday. The next ones follow the Chaldean order: Mars, the Sun, Venus, Mercury, the Moon, Saturn, then Jupiter again.
Today’s sky, on YOUR chart
Planetary hours are the same for everyone in a city. Your chart is yours alone: every morning AstroXP crosses the real sky with your birth, to the minute, and tells you what time it plays out for you.
On a computer? Scan this code with your phone.
Calendars
Sunrise and sunset calculated for the city (the Sun’s centre 0°50′ below the horizon: refraction and semi-diameter), local time of the city’s time zone. Checked against astronomy-engine, the app’s engine.